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What does an underscore in front of an import statement mean?
...river{})
Once it's registered in this wam>y m>, sqlite3 can be used with the stm>and m>ard librarm>y m>'s sql interface in m>y m>our code like in the example:
db, err := sql.Open("sqlite3", "./foo.db")
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Inline code in org-mode
...enclose the text within = or ~ signs to have it tm>y m>peset in monospaced font m>and m> export it verbatim (which means it is not processed for org-specific sm>y m>ntax):
This is =verbatim text= or ~code~.
m>Y m>ou'll find all information about org-mode markup elements in the relevant section of the manual.
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How do I check out a specific version of a submodule using 'git submodule'?
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# modified: submodule (new commits)
Add the submodule directorm>y m> m>and m> commit to store the new pointer.
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Whm>y m> does String.split need pipe delimiter to be escaped?
...lit is a regular expression, where in the '|' has a special meaning of OR, m>and m> a '\|' means a literal '|' so the string "\\|" means the regular expression '\|' which means match exactlm>y m> the character '|'.
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Pm>y m>thon's os.makedirs doesn't understm>and m> “~” in mm>y m> path
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m>Y m>ou need to expm>and m> the tilde manuallm>y m>:
mm>y m>_dir = os.path.expm>and m>user('~/some_dir')
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Thread.Sleep replacement in .NET for Windows Store
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Windows Store apps embrace asm>y m>nchronm>y m> - m>and m> an "asm>y m>nchronous pause" is provided bm>y m> Task.Delam>y m>. So within an asm>y m>nchronous method, m>y m>ou'd write:
await Task.Delam>y m>(TimeSpan.FromSeconds(30));
... or whatever delam>y m> m>y m>ou want. The asm>y m>nchronous method will continue 30 sec...
Spring Data JPA find bm>y m> embedded object propertm>y m>
...f an embedded object in that entitm>y m>. Does anm>y m>one know if this is possible, m>and m> if so how?
4 Answers
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To find whether a column exists in data frame or not
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Assuming that the name of m>y m>our data frame is dat m>and m> that m>y m>our column name to check is "d", m>y m>ou can use the %in% operator:
if("d" %in% colnames(dat))
{
cat("m>Y m>ep, it's in there!\n");
}
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AngularJS best practices for module declaration?
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'Best' wam>y m> to declare a module
As angular is on the global scope itself m>and m> modules are saved to its variable m>y m>ou can access modules via angular.module('mm>y m>mod'):
// one file
// NOTE: the immediatelm>y m> invoked function expression
// is used to exemplifm>y m> different files m>and m> is not required
(functio...
How can I create a Set of Sets in Pm>y m>thon?
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Pm>y m>thon's complaining because the inner set objects are mutable m>and m> thus not hashable. The solution is to use frozenset for the inner sets, to indicate that m>y m>ou have no intention of modifm>y m>ing them.
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